CAT24C04YI-GT3 - 4Kb I2C Serial EEPROM, 400kHz | onsemi
部品番号: CAT24C04YI-GT3 ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $0.41 | $0.41 |
| 10 | $0.36 | $3.60 |
| 100 | $0.27 | $27.00 |
| 500 | $0.22 | $110.00 |
| 1,000 | $0.18 | $180.00 |
CAT24C04YI-GT3 概要
A serial EEPROM is a non-volatile memory device accessed via a low-pin-count serial bus, used to store user-configurable parameters such as calibration data, device IDs, and configuration registers. The CAT24C04 sits in the EEPROM > non-volatile memory > memory IC > integrated circuit taxonomy, and serves as a compact, parameter-sensitive solution to embedded non-volatile storage needs.
Key features include hardware write protection via the WP pin, software write protection through block-level access control, and 16-byte page write mode for efficient multi-byte programming. The device uses a self-timed write cycle and integrates noise suppression filters on the SCL/SDA inputs, eliminating the need for external RC components. It also supports hardware device address selection through the A0-A2 pins to support up to 8 devices on the same bus.
The CAT24C04YI-GT3 uses CMOS technology with a 2-wire I²C serial interface compatible with industry-standard EEPROM protocols. The device addresses memory using a 2-byte address scheme with the two most significant bits embedded in the device address byte, allowing pin-to-pin compatibility with the smaller-density CAT24C02x. The wide VCC range (1.8V-5.5V) supports both 3.3V and 5V system designs without level shifting.
Typical applications include consumer electronics configuration storage, industrial sensor calibration, IoT device parameter storage, white goods settings retention, smart meter data logging, and automotive infotainment non-volatile memory. The 8-pin TSSOP package is well-suited for compact PCB designs where board space is constrained.
When designing with this EEPROM, ensure SDA/SCL pull-up resistors (2.2kΩ to 10kΩ depending on bus capacitance) are placed close to the bus master. Verify the total bus capacitance including all device pins remains below 400 pF for reliable Fast-mode operation at 400 kHz.
This page synthesizes distributor pricing, drop-in alternatives across onsemi and competitor families, and practical design notes not found in the manufacturer datasheet.
ドロップイン代替品: CAT24C04YI-GT3 — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
クイック比較ツール — 並列比較する代替部品を選択:
CAT24C04YI-G
✅ ドロップイン📋 参考代替品（カタログ未掲載）
CAT24C04ZI-G
✅ ドロップイン📋 参考代替品（カタログ未掲載）
CAT24C04WI-GT3
✅ ドロップイン📋 参考代替品（カタログ未掲載）
BR24G04FVT-3GE2
✅ ドロップイン📋 参考代替品（カタログ未掲載）
M24C04-RDW6TP
✅ ドロップイン📋 参考代替品（カタログ未掲載）
CAT24C04YI-GT3 仕様
| メモリタイプ | Non-volatile EEPROM (Serial) |
| メモリサイズ | 4 Kbit (512 x 8) |
| メモリ構成 | 32 pages x 16 bytes |
| インターフェース | I²C (2-wire serial) |
| 最大クロック周波数 | 400 kHz (Fast-mode) |
| Standard Clock Frequency | 100 kHz |
| Access Time | 900 ns |
| Supply Voltage (VCC) | 1.8 V to 5.5 V |
| Endurance | 1,000,000 program/erase cycles |
| Data Retention | 100 years |
| Write Cycle Time | 5 ms (page write, self-timed) |
| Write Protection | Hardware WP pin + software block protection |
| 動作温度 | -40°C to +85°C (industrial) |
| パッケージ | 8-pin TSSOP |
| 実装タイプ | Surface Mount |
| ピン数 | 8 |
| RoHS ステータス | Compliant |
CAT24C04YI-GT3 ピン構成
| ピン 1 | A0 — Device address input bit 0 |
| ピン 2 | A1 — Device address input bit 1 |
| ピン 3 | A2 — Device address input bit 2 |
| ピン 4 | GND — Ground |
| ピン 5 | SDA — Serial data (bidirectional I²C) |
| ピン 6 | SCL — Serial clock input |
| ピン 7 | WP — Write protect (active high) |
| ピン 8 | VCC — Power supply (1.8V to 5.5V) |
主な用途
CAT24C04YI-GT3 の用途: 6 件s: Consumer Electronics Configuration Storage, Industrial Sensor Calibration Storage, IoT Device Parameter Storage, White Goods Settings Retention, Smart Meter Data Logging, Automotive Infotainment Non-Volatile Memory.
Consumer Electronics Configuration Storage
The CAT24C04YI-GT3's 4 Kbit capacity and 1,000,000 write cycles make it ideal for storing user-configurable parameters in consumer devices like TVs, set-top boxes, and home audio equipment. With 16-byte page writes completing in a self-timed 5 ms cycle and 100-year data retention, this EEPROM reliably holds channel lists, EQ presets, language settings, and parental-control PINs even through power cycles. The 1.8 V to 5.5 V supply range enables direct connection to 3.3 V microcontroller I/O without level shifting. I²C bus sharing with other peripherals (RTCs, GPIO expanders) keeps the BOM small.
おすすめ
Industrial Sensor Calibration Storage
The CAT24C04YI-GT3 stores factory calibration coefficients for industrial pressure transmitters, thermocouples, and gas sensors. Its 1.000,000 write-cycle endurance supports frequent field recalibration throughout the equipment's 10+ year service life. The 8-pin TSSOP package and -40°C to +85°C industrial temperature range suit sealed sensor housings and outdoor installations. The hardware WP pin allows production engineers to lock calibration data after final test, while the software block protection scheme protects specific address ranges from accidental writes during firmware updates.
おすすめ
IoT Device Parameter Storage
Battery-powered IoT nodes like smart thermostats, asset trackers, and environmental monitors use the CAT24C04YI-GT3 to retain device IDs, network credentials, and threshold values. The wide 1.8 V to 5.5 V VCC range supports operation as cells approach cutoff, while the 100-year retention ensures data integrity across long field deployments. The I²C interface allows the same two pins (SCL/SDA) to be shared with sensors, RTCs, and IO expanders, minimizing pin count on small-form-factor IoT boards. The TSSOP-8 package fits in compact wearable form factors.
おすすめ
White Goods Settings Retention
Washing machines, dishwashers, ovens, and refrigerators use the CAT24C04YI-GT3 to store cycle programs, error logs, and user preferences. The 1,000,000 cycle endurance handles frequent settings changes over the appliance's 15-year service life. The 8-pin TSSOP package fits on compact motor-control boards alongside MCUs and triac drivers. Hardware write-protect via the WP pin prevents firmware bugs from corrupting factory-set programs. The 1.8 V to 5.5 V supply range works with the 3.3 V MCUs common in inverter-based motor drives.
おすすめ
Smart Meter Data Logging
Electricity, water, and gas meters use the CAT24C04YI-GT3 to log consumption history, tariff schedules, and tamper-detection flags. With 100-year data retention and 1,000,000 write cycles, this EEPROM reliably records time-of-use billing data and event logs across the meter's 20+ year calibration life. The TSSOP-8 package fits in the constrained space inside meter's main board alongside the metrology SoC. The hardware WP pin protects tamper-detection flags from accidental clearing during routine maintenance.
おすすめ
Automotive Infotainment Non-Volatile Memory
The CAT24C04YI-GT3 stores radio presets, navigation waypoints, and user profile settings in automotive infotainment head units. With 100-year data retention, it survives the harsh automotive thermal environment and battery-disconnect events during service. The TSSOP-8 package fits on the main head-unit PCB alongside the infotainment SoC and audio DACs. The hardware WP pin protects critical safety-related settings from accidental corruption. The I²C interface shares pins with other low-speed peripherals, reducing harness complexity.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: CAT24C04YI-GT3 — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | CAT24C04YI-G | CAT24C04ZI-G | CAT24C04WI-GT3 | BR24G04FVT-3GE2 | M24C04-RDW6TP |
|---|---|---|---|---|---|---|
| Brand | onsemi | onsemi | onsemi | onsemi | ROHM Semiconductor | STMicroelectronics |
| Package | TSSOP-8 | TSSOP-8 | TSSOP-8 | SOIC-8 | TSSOP-8 | TSSOP-8 |
| Memory Size | 4 Kbit (512 x 8) | 4 Kbit | 4 Kbit | 4 Kbit | 4 Kbit | 4 Kbit |
| Interface | I²C 400 kHz | I²C 400 kHz | I²C 400 kHz | I²C 400 kHz | I²C 400 kHz | I²C 400 kHz |
| Supply Voltage | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.7 V to 5.5 V | 1.8 V to 5.5 V |
| Endurance | 1,000,000 cycles | 1,000,000 cycles | 1,000,000 cycles | 1,000,000 cycles | 1,000,000 cycles | 1,000,000 cycles |
| Write Protection | Hardware + Software | Hardware + Software | Hardware + Software | Hardware + Software | Hardware WP | Hardware + Software |
| Operating Temperature | -40°C to +85°C | -40°C to +85°C | -40°C to +85°C | -40°C to +85°C | -40°C to +85°C | -40°C to +85°C |
主な差別化要因
- Wide 1.8V to 5.5V supply range supports both 3.3V and 5V systems （vs BR24G04FVT-3GE2)
- TSSOP-8 footprint with exposed thermal pad for improved heat dissipation （vs CAT24C04WI-GT3 (SOIC-8))
- 1,000,000 write cycle endurance with 100-year retention （vs M24C04-RDW6TP)
設計ノート
Place the CAT24C04YI-GT3 close to the bus master to minimize bus capacitance. Use 2.2kΩ to 10kΩ pull-up resistors on SDA and SCL, with values chosen based on total bus capacitance. Per onsemi's datasheet, total bus capacitance including all device pins must remain below 400 pF for reliable Fast-mode 400 kHz operation. Decouple VCC with a 100 nF ceramic capacitor placed within 5 mm of the VCC pin.
Do not connect the WP pin directly to VCC if you need to write to the upper address quadrant (0x100-0x1FF). The WP pin hardware-protects the entire memory array when tied high. Tie WP to GND if write access is always required, or to a GPIO if you need runtime control. Per onsemi's datasheet, software WP protects specific address ranges defined by the block-protection bits in the device address.
The CAT24C04YI-GT3 includes Schmitt-trigger inputs with 50 ns noise filters on SCL and SDA, suppressing glitches on the bus. For long bus runs (>10 cm), add series resistors near the master to dampen ringing. Per onsemi's datasheet timing diagrams, allow at least 600 ns hold time after a STOP condition before the next START to avoid bus lockup.
コンプライアンス情報
RoHS compliant per onsemi product page. Not AEC-Q100 qualified - select automotive-grade EEPROMs from other families for automotive applications.
